Robert Griffin III suffered a knee injury in the Redskins' win over the Ravens last Sunday. / Evan Habeeb, USA TODAY Sports

by Jim Corbett, USA TODAY Sports

by Jim Corbett, USA TODAY Sports

ASHBURN, Va. -- Small wonder why Robert Griffin III was hop skipping across the Redskins Park parking lot into their practice bubble prior to Friday's practice:

On the key day for the Redskins rookie quarterback to prove beyond a shadow of a doubt he was capable of eluding Cleveland Browns pass rushers Sunday, Griffin looked like his vintage self on one rollout throw.

That seemed to answer the biggest question about his steady progression following Sunday's Grade 1 sprain of the lateral collateral ligament inside his right knee suffered late in an overtime win against Baltimore.

Griffin had more bounce in his step on shuffle drills and showed good lower-body explosion on all warm-up drills. Most significantly, he was up on his toes and on balance throwing a corner fade pass to receiver Santana Moss, showing no signs of limitation.

Griffin indicated this week that if there is no setback or risk of re-injury, he will be out there for his teammates.

Still, it's fair to wonder if the Redskins coaching staff even will make a determination for sure until Sunday warm-ups at Cleveland Browns Stadium field based on something offensive coordinator Kyle Shanahan said Thursday.

"I'll wait to see how he's moving on Sunday before I decide because I haven't made any final decisions yet,'' Shanahan said. "He's not going full speed out there so you never really know how healthy he is until he's going full speed.''